/*声明变量*/
/*调用变量*/
body {
  color: #000;
  border: 1px dotted #000;
  width: 1000px;
  margin: 0 auto;
}
.testDiv {
  width: 1000px;
  margin: 0 auto;
  background: #e15b5b;
  height: 200px;
}
